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Image GPS_5 Comments on the images: GPS_1 Display of a GPS path with polyline and markers GPS_2 Display of current GPS data with the position on the map GPS_3 Display of GPS path data in a table GPS_4 Main screen, display of a tooltip, just touched the PATH button before releasing it GPS_5 Display
link: Hi Klaus, Thank you very much for this example of GPS. I have a problem where it compling : << AAPT path: C:\Program Files\Android\android-sdk\tools\
link: Klaus A small bug, if there is no GPS signal and you press the GPS button you get an error. 33493 The error comes from here: Sub GPS1_NMEA (TimeSt
link: Thank you for reporting this: Try this code. Sub GPS1_NMEA (TimeStamp As Long, Sentence As String) If GPS1.GPSEnabled = True Then If Sente

More or less the same result, I am sure. You can't expect that much accuracy by cheap hardware always used in smartphones. As said above, GPS is more or less only a thing of microseconds, clear view and reflections, amount of satellites used for triangulation and finally some math.
link: GPS readings are usually at least one-per-second, so treating the path as a collection of one-second-long straight line segments should be close enoug
link: That is Wrong, the GPS also has an acuracy parameter, it can beas low as 1-2 meters. Depending on various factors, old phones use only 24 satellites,
link: Ehhh, you're a little too optimistic My experience says that a few tens of meters is a better approximation The meter is approached only with telepho

Hi, https://www.b4x./?query=distanceto
link: Android's DistanceTo is enough accurate and uses more complex formulas than Haversine. But sometimes is neccessary to synchronize calculations, for e

Starting from Android 7 we can extract more information about the satellite navigation status. GPS is the first satellites system (the American system). There are several more systems now available. Android supports all kinds of systems: https://developer.android. The attached project is based on

The external GPS sends those sentences to you and you have to decode them to get the location information you want. Furthermore, because they arrive from a serial port they will not arrive as complete packets so you will have to buffer incoming data, scan it for the sentence header and trailer and t

Sorry, got a bit sidetracked. Where I was heading is that GPS is a major battery drain and something that Android would be keen to discourage use of. So perhaps using accelerometers to keep GPS switched off until it's actually needed, might help you fly under the radar of Android's power-conservat
link: in which case, if the phone has (3 x) accelerometers, then you maybe you can use those to detect when the phone starts moving, and then when that happ

GPS is for the real world, in a 3D world x is width, z is depth and y is height.
link: In GPS coords, normally X & Y are lat & lon & Z is elevation (altitude). - Colin.
link: How does the GPS Object help here? I do NOT have GPS-Positions of the drivers. MY GPS Position is not relevant. I´m living in germany. and the race is

I don't think you can. Most GPS modules are "slaves" meaning they mostly receive AT commands, and occasionally send commands to the Master device to inform something has happened, like a incoming call or SMS. The it's up to the Master to treat the information received.
link: You need 1)Nano ATMEGA328p 2)SIM800 GSM module 3)GPS module Ublox 6M or better Alternatively item 2) can be SIM868 GSM +GPS module
link: Be careful with SIM808, it seems reading GPS interferes with GPRS connectivity as on some modules second UART is not broken out. I had this issue wher
link: I am still thinking of what to buy. Most tempting one is: Sim800 module Gps module Esp32 Ready to go trackers doesnt help me as i need the location

I view and use a GPS DEMO PROYECT from https://www.b4x.com/android/forum/threads/gps-tutorial.6592/ but, in a house (no street), the app return several satellites, but no lat and lon why? i view others app, that return the position in same site (my office/house). like this: https://play.google.co
link: and how i can access to this other thenics: Network, cache, etc? my custome say me that other app, can show lat and lon (and that is true), and why my
link: Latitude and longitude are only available if the GPS sensor has got a fix. Having a fix means that your phone can 'see' several satellites (usually mo

GPS - Combined Instruments Uses JGraphicLib

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